package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetMealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {

    @Autowired
    private DishService dishService;
    @Autowired
    private SetMealService setMealService;

    @Override
    public void remove(Long id) {
        LambdaQueryWrapper<Dish> qw1 = new LambdaQueryWrapper<>();
        qw1.eq(Dish::getCategoryId,id);
        int count1 = dishService.count(qw1);
        if (count1>0){
            throw new CustomException("此表不可删除,请退下1");
        }

        LambdaQueryWrapper<Setmeal> qw2 = new LambdaQueryWrapper<>();
        qw2.eq(Setmeal::getCategoryId,id);
        int count2 = setMealService.count(qw2);
        if (count2>0){
            throw new CustomException("此表不可删除,请退下2");
        }
        super.removeById(id);
    }
}
